Place it as the reaction beat right after the nonsense message appears on screen, then follow it with a classic error sound for the failed reply, or precede it with a dun dun dun sound before cutting away.
이 사운드에 대해
This is a seven-second sound effect built around a random keyboard-mash sequence, with no clear word or melody to latch onto. It gives a listener a confused, throwaway feeling, like reading a message typed by elbows, which is exactly why that burst of nonsense registers as funny rather than meaningful in the moment.